Principal, Software Engineer (L5) @Twilio

    about 7 hours ago·Twilio is hiring a remote Principal, Software Engineer (L5)·📍 Ireland

    Overview

    Twilio is shaping the future of communications through innovative solutions. The company is committed to remote-first work and fostering a culture of connection and global inclusion.

    Key Responsibilities

    • Design and deliver components of Twilio's carrier test and observability platform, covering active voice and messaging testing.
    • Build data and alerting systems for operations teams.
    • Extend production LLM systems for automated carrier troubleshooting.
    • Diagnose cross-boundary failures in carrier behavior and establish observability.
    • Contribute to technical design, mentor engineers, and help shape standards.

    Requirements

    • 12+ years of software engineering experience with expertise in large-scale systems.
    • Deep knowledge of distributed systems for processing high-volume time-series or event data.
    • Hands-on experience with LLM-based systems in production.
    • Strong proficiency in a backend language (Java, Go, Scala) and familiarity with event streaming and cloud infrastructure.
    • Ability to communicate complex technical trade-offs effectively.

    Benefits

    Twilio offers competitive pay, generous time off, parental and wellness leave, healthcare, a retirement savings program, and more. Benefit offerings vary by location.

    Location

    Remote - Ireland

    How to Apply

    To apply, please submit your application through the Twilio careers page.

    Deadline

    No specific deadline mentioned.

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